photo:lightroom_techniques
Adobe Lightroom techniques
optimising your export for Facebook
FB will create multiple versions of your image, each with a different size
width should be a multiple of 480 pixels (eg. 960 for a portrait or perhaps 1920 pixels for a landscape image) to allow FB to resize to 480 pixels with better image quality and minimise banding (if you still get banding, consider adding a small amount of noise)
FB's algorithms tend to lose your high frequency data - that is the fine detail, so if you don't want your image looking too blurry, ensure you middle frequency data is optimised - that is - the image details you can see without pixel peeping
if using layers in PS then duplicate your image then flatten the layers before resizing
currently there does not appear to be any advantage of PNG over JPG as FB will convert to JPG if your PNG is larger than 1Mb
reducing high ISO noise
editing landscapes and seascapes
panoramic stitches
just select the images you wish to use then right click and select Panorama
then you get a preview and can choose which option - spherical, cylindrical or perspective
skin tones and eyes
step 0: basic adjustments first:
over-expose skin in camera without getting blown highlights - then reduce exposure in Lightroom to suit - this gives more tonality and smoother skin with less noise
ensure white balance is accurate
apply lens profile correction if available for that lens
straighten and crop image
set overall sharpness level to exclude skin:
step 1. use heal spot removal to fix blemishes
feather = 0
opacity = 100
step 2: smooth skin using an adjustment brush
avoid eyes, eyebrows, nostrils and lips
clarity = -45
sharpness = +43
noise = +40
feather = 100
flow = 100
density = 100
automask = ON (so you can see where you have painted by pressing O)
for area at top of cheeks, smile creases, etc, try a brush:
highlights = 67
shadows = 62
clarity = -38
sharpness = -33
flow = 45
feather = 40
step 3: set noise levels to further improve skin and whites of eyes
luminance = 31
detail = 50
contrast = 0
color = 25
detail = 50
smoothness = 50
step 4: adjust skin color
correct fake tan, etc
using the HSL method:
zoom in on the subject's face
go to HSL section, click on HSL
for each of hue, saturation and luminance, sequentially adjust each by dragging the marker onto the skin and adjusting up or down as needed
using the RGB curve method 1):
go to the Tone Curve and click on the small curve icon and this will allow you then to select channel
select channel red
drag the marker to subject's skin and read off the value eg 74%
repeat using the same bit of skin for each channel
calculate an adjustment value = (red - blue)/2
set the red channel on that skin to equal the green value + the adjustment value by holding down the shift key as you change it
set the blue channel on that skin to equal the green value - the adjustment value by holding down the shift key as you change it
fine tune green channel to taste
optionally convert to B&W
step 5: adjust eyes
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pupil adjustment brush settings:
exposure = -4
contrast = -100
highlights = -100
shadows = -100
clarity = 40
saturation = -100
iris adjustment brush settings:
exposure = 0.35
contrast = 0
highlights = 0 to 10
shadows = 0 to 17
clarity = 10 - 40
saturation = 40
sharpness = 0 to 18
automask = ON
catchlights adjustment brush settings:
exposure = 0.35
contrast = 0
highlights = 0
shadows = 0
clarity = -8
saturation = 24
automask = ON
whites of eyes adjustment brush settings:
exposure = 0.14
contrast = 0
highlights = 0
shadows = 0
clarity = 0
saturation = -47
automask = ON
step 6 adjust lips
contrast = 0
highlights = 70
shadows = 0
clarity = 35
sharpness = 30
automask = ON
flow = 45
feather = 40
photo/lightroom_techniques.txt · Last modified: 2018/08/30 20:48 by gary1